gitweb: Show target of symbolic link in "tree" view

In "tree" view (git_print_tree_entry subroutine), for entries which are
symbolic links, add " -> link_target" after file name (a la "ls -l").

Link target is _not_ hyperlinked.

While at it, correct whitespaces (tabs are for aling, spaces are for indent)
in modified git_print_tree_entry subroutine.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 145d5b53b8864b30ec4adbb6a699ce2f73b6ab21..b706f7435c6e9242f6778a7cdc38a20d5bc3de8e 100755 (executable)
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -1989,12 +1989,31 @@ sub git_print_log ($;%) {
        }
 }
 
+# return link target (what link points to)
+sub git_get_link_target {
+       my $hash = shift;
+       my $link_target;
+
+       # read link
+       open my $fd, "-|", git_cmd(), "cat-file", "blob", $hash
+               or return;
+       {
+               local $/;
+               $link_target = <$fd>;
+       }
+       close $fd
+               or return;
+
+       return $link_target;
+}
+
+
 # print tree entry (row of git_tree), but without encompassing <tr> element
 sub git_print_tree_entry {
        my ($t, $basedir, $hash_base, $have_blame) = @_;
 
        my %base_key = ();
-       $base_key{hash_base} = $hash_base if defined $hash_base;
+       $base_key{'hash_base'} = $hash_base if defined $hash_base;
 
        # The format of a table row is: mode list link.  Where mode is
        # the mode of the entry, list is the name of the entry, an href,
@@ -2005,16 +2024,23 @@ sub git_print_tree_entry {
                print "<td class=\"list\">" .
                        $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
                                               file_name=>"$basedir$t->{'name'}", %base_key),
-                               -class => "list"}, esc_path($t->{'name'})) . "</td>\n";
+                               -class => "list"}, esc_path($t->{'name'}));
+               if (S_ISLNK(oct $t->{'mode'})) {
+                       my $link_target = git_get_link_target($t->{'hash'});
+                       if ($link_target) {
+                               print " -> " . esc_path($link_target);
+                       }
+               }
+               print "</td>\n";
                print "<td class=\"link\">";
                print $cgi->a({-href => href(action=>"blob", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             "blob");
+                                            file_name=>"$basedir$t->{'name'}", %base_key)},
+                             "blob");
                if ($have_blame) {
                        print " | " .
                              $cgi->a({-href => href(action=>"blame", hash=>$t->{'hash'},
-                                                          file_name=>"$basedir$t->{'name'}", %base_key)},
-                                           "blame");
+                                                    file_name=>"$basedir$t->{'name'}", %base_key)},
+                                     "blame");
                }
                if (defined $hash_base) {
                        print " | " .
@@ -2036,8 +2062,8 @@ sub git_print_tree_entry {
                print "</td>\n";
                print "<td class=\"link\">";
                print $cgi->a({-href => href(action=>"tree", hash=>$t->{'hash'},
-                                            file_name=>"$basedir$t->{'name'}", %base_key)},
-                             "tree");
+                                            file_name=>"$basedir$t->{'name'}", %base_key)},
+                             "tree");
                if (defined $hash_base) {
                        print " | " .
                              $cgi->a({-href => href(action=>"history", hash_base=>$hash_base,